Adding-machine.



Y J. w. WITSBLL; A# 'ADDING MACHINE, 'lfrnl'ou'llolr -rrnnn Jun: 2o, 1911.'

Patented Aug. 6, 1912.

a sums-sushi ATTORNEYS' J. W. WITSELL.

ADDING MACHINE.

PPLIoAfrlon rILnn JUM: '2o. 1911.

1,035,066. Patented Aug. 6', 1912.l

2 SHEETS-SEEET 2.

Arion/vers comprises e. Casing 1 having a. removable mil-TEU eneide.,

Specification ef Imc-ff fame Patent-ea Aeg.

Application filed June $15, l. IIe. 634,524.1.

To ai@ fwwfm 'it may Concern.' .i

Be it known that 1, JOHN .VVAR'iNG Wifi SELL, a citizen of the United States, an@ resident of Charleston, in the county off. Charleston,` State of South Carolina., have invented a new and useful mprevementin Adding-Machines, of which tlie following is a specification.

My invention is an improvement in add ing machines, and hr1-e for its object the prrr vision of u simple and easily operated vice of the character specified, 0't`. :i size te permit it to be placed Conveniently on tl'ae' desk near t-lienser, and which has few parte to get out of order.

In the drawings-Figure 1 is a. pere me tive View of the improvement; Fig. is. transverse vertical section; Fig. isla see-- tion on the line-3 3A ef Fig. Q; perspective View of n driving 5 is a side View of a portion 0 Fig. 5a is a plan 'View' of Fig. 5; Fig. 6 perspective view of the clearing device, and Fig. "Y is a perspective View of zr medi-lied forni' of pewl arm. y y

The lfvresentembodiment of lie invention rn L L Fi p vbottom plate lield in 'place by screws 3 and having a removable top plate 4 also held in place by screws 5.` A. Shaft 6 is jeurneled longitudinally et the euse, and the up frontcorner of the Case founded 0n an i are 'of the Circle, as indicated at ,7, and g non provided with a plurality of vertical spaced parallel slots 8. A Wheel iS jeurnalee. on the shaft adjacent te ea'eli slot. Each Wheel comprises a hub 10, and a. perforated wel? 117 'which is provided Witn :i lateral :anewlar flange 1Q- and 13 et each side gte-v e 13 has a Shorter e.

with the shaft. The fla' radius 'than the flange with a radial. flange 'or rib 1e provided Y spaced ratchet teeth 9 wliien extend tlirtmgli the adjacent Sletinto position foi` en ment by the finger te turn the wheel. flange 14 is ec neeed to the web e Wheel at spaced intervalj by t-rensver 15, and each flange 12 ie provided plurality 0f series el spaced nemer The numerals run frein G to 9 und are rangedA consecutively in eeel im A. shaft 17 is jfmrneled 1n heer 'm fritudinally 0f the @eee et lili-1., r

corner, and a'plnrality efpetwl arme i5 im the shaft.

et one. end a heerlen), 26 for ing in l'ze slmt. The opp te end' of enlenged` and is rectangular in section, nd provided with e reduced erselv peif'esfated lug Q1. patri in ie ef a. limi-i 29 is provided alt-.one end f. aie 'fel arm '23, and at the einer with e. 211. received in the pereifatien The outer end of the jourpwrwided with a. lng extending iengiu ..11 uf the body of tlie'linli'smd parallel tiieree'itlfi. et. the side' adjacent te the ing i251 the bei' 19 is provided with a Each arm empre-Ses e vlongitudinnlly ext-ending lug :26, eiwe'ixigA sligli'tlv ffewnwztrd toward its ree end for lug t() limit the downward g of flielinlf. .A rest 27 isnrranged iengitudnally of the case below the bars 19 and in pesition 'for engagement 'by the here when in inoperative pesition. The reet is faced with layer 28 of felt er like materiel.

llfwill be noticed from an ins fection of 1 5 tlm; six- Wli-'eele are provided; and that zt pewl .firm provided for the .tiret tive wheels, eemmencing at t'ne left. The lateral arm 9.5i ef tlie'pawl engages the teeth, end

coller is arranged 'between eac-li pair mi adjefenlberings 90 for spacing the' sleeve eneireles the shaft lvat @wia end for nel ilie arm in preper itisan. vlt will 0e enticed that `tlfie p0rejf' the esing dell is greov'ed verti- "i Spa-eed intervals end-that the slots n ziie bottoms e? the grooves, 31. The forni e guide fer the linger, and the d slVY ly beyond' the eine gf grooves, liewever, Y mee fer the fingers.-I An e revided as; 'liefide of the ein slot in reg the led, and each opening is preflv el l nj.' Sheet. of transparent ma# l as, :teil3 instance, glass. series neme of fadjae nt Wheels, the seid numerals runeenseeutivelf from above downward G in S?. The pewls .are ifi-firing like nnmeml are for the phr- 'sg the numeral app :1i-ring relis is; erranged between .each pairin' operation', the machine is first clearedtby throwin intheclearing at` Vtachment, to be -descr1bed, a'ndl afterward 'meansof-the crank, andthe machine is thenl ready theoperation of addition. `-For instance?.l supposef-'that it. is desired to' add Vthe following A1 3 5''f|-36 7-{'-8i0. To add v the vabove sums, the '.forefingerzof the rightl..hand placed' onl lthe uppermost 'point of thewheel at 'the right hand opening of the machine-,`the saidwheel lrepresenting units, and thepoint-is` drawndown until it registers with the n'umeral-'in'the series 32 ofnumeralsadjacentto the said Wheel. The finger` i'sjnoxv engaged with the pointfof the wheelat its uppermost point and the wheel 'is againturned 'until this point registers with' the numeral 7 in the series 32 of numeralslf Thc numeral 2Will now appear in the first opening 31, from vrthe right and the numeral '1 inthe second openingfrom 'theright. f AThe finger is now. vshifted to the secondor tens 'Wheel` and the said wheel is moved to bring the `uppermost point into register with the numerals 43, 6 and 4 respectivelyof 'the` series 32 of numerals at .the left "hand sideoithe said second Wheel. `When this has been done, the numeral 4 will appear in the opening above the said Wheehand the numeral Vl will appear in the thirdopening from the right of the machine. The thirdwheel fromthe right is 4now operated in 'the same manner to bring the uppermost tooth into registerV with the nus meralsv1,"2 and `8 Vrespectively, after which it be not-icedthat the numeral 2 appears the opening at the top of the. third wheel and the numeral V1 in the opening at vthe top lofi' the fourth wheel. The sum ofthe :num-

bers .givenin the example is thus indicated'v Each Vof with threeseries of numerals, each series running from naught'to, and the series are separatedby-'the transverse ribs 15,- before mentioned. The transverse Aribs 15 are' adapted Ato engage the lugs'26 ofthe pagvl arms, to operateithe 'Saidarms to cause/theA parvis to movethe succeeding "vvheel.v -'l`hat is, when theun-it--wlieel which 1s at the right of-themachi'ie, has been turned amountingv to .9 teeth,the ribs 15 on thesaid wheel will-engage the lug 26 of the adjacent' pnwl arm,"'a nd will cause the said pawl arml to swingupwardly asf indicated'in dotted VEines in Fig. ,-2. Thepawl 23 of the said arm will engage the next wheel Vfrom Vthe the number wheels is provided- "distance" 4the case.

right, that is, the tens wheel, and -wiil 4inove the-said wheel the space of .one tootlnthus `indicating that the unit v'vheel.;has been turned a distance of tenteethJ-When the tens Wheel has been turned a'distance corresponding to tenteeth, thehundreds Wheel will be moved, and in .like manner the re maining Wheels` Y v 1t will be understood that as .many V`Wheels may be provided as .desir-ed.l -ln thepresent instance, six are' shown, this 'beingfen'oughv vfor purposes of ill u`s trati0I,1-. `The clearing f attachment shown'more particularlylin Fig.

6 consists of a shaft 35' journaled in the vcas?.

ing, and extending outsidefofthe 'casing'at the right' hand end, the said shaft'being pro-l vided with lateral arms 37:,fcqrrespond1ngin 'number ,andposition to the-number and position of the Wheels,A andldesigned V`to en#` .gage the ribs 15 of the wheels,- to'stopthe Y i said wheels with a naughtfappearing atthe opening 31. corresponding tothe said wheel; The arms-arg, thrown iinto` and out'. op'osil tion for engaging the lribs-.bymeansof the crank arm 3&6. WhenY the shaft is `turned-to bring the arns into position vfor engagement by the ribs, and thewheelsga're turned,'it

-will vbe evident that .each-"Wheel will be stopped with a naught appearing through vthe opening 3l correspondingthereto.

Y A holding .pawl 33 is provided for each longspring 39, `having oneend .securedfto the casing atV 40, While the other .endf is provided with a slight angularportion 41,1

teeth of the Wheel at the other end.^ VEach .l l of the wheels is vprovided with a thin, dat,

engaging spaced Atransverse notches4'2,inthed Wheel. 'The engagement is very light, but

sufficient to impart a''slight shockto the fingers when operatingthe wheel'in the manner just described. The said springsA 39 are designed to not-'ifythe operatorrwhen the WheelV 1s in proper position, and Vthe' grooves 42 are arranged between the desigl;` nations of the :numerals on the wheels. 'The -springs Will causea slight stoppage \dis,

tmctly perceptiblehowever,Warning the operator thatvthewheel 4is in .such 'position' that a; numeralV appearsjthrough v,the opening f belonging thereto@v The springs are. v not of suicient strength* to :impede the movement stopped.

In Fig.

vv5 ig shown mediata; fami bf.

eervijng4 the-shaft] 17,' and `ailight spiralv sprir` 47"is arr nged A between thebearings ont-.he shaft.` Oneend ofthesprfmgbf29 against the ar'rn,`:and `the other endragainst The loweren'd of lthe arm-.451s also provided withl'sp'aced bearings511:8, .Mld

a light spring'49 encrcles the journal pin 24 f the pawl between the bearings, the said-pin being journaled in the hearings. The object of the springs is to insure the f quick return of the pawl arms and pawls.

1. In an adding machine, a wheel comprising a disk provided at its periphery With oppositely extending annular flanges, one of the flanges being of shorter radius than the other, and having an outwardly eX- tending rib at its outer edge provided with teeth or points for engagement by the linger of the operator t0 move the Wheel, a plurality of series of consecutively arranged numerals on the other flange, transverse stops on the first-named flange between the disk andthe lrib between the series of numerals, a swinging pawl arm adjacent to each wheel, each arm having means for engagement by the stops or ribs of the wheel to move the same, and having means for enH gaging the teeth of the succeeding wheel to move the said Wheel.

2. An adding machine, comprising a plurality of coaxial wheels, each having a plurality of series of consecutively arranged numerals on its periphery, and stops or ribs between the adjacent series, eachy wheel having an annular series of teeth or points for engagement by the finger of the operator to move the said wheel, means adjacent to each wheel for engagement by the Wheel to move the succeeding wheel, and means for alinin f the wheels, said means comprising, a sha t journaled substantially parallel with the axis of the wheels, and having a lateral arm for each wheel to engage the stops, and means for swinging the said shaft into and out of engaging position. y

JOHN WARING WITSELL. Witnesses:

C. E. BURN, S. B. ELKE. 

